Working on my hubby's folks. Working back from late to early I have Stowell (Stolle, Stohl, Stoel, Stull) married to Hartman/Hardman, married to Broadhurst (Bradecks, Broaddus), married to Hostetler/Hochstetler, married to Townsend, followed by Wise, Hartley, Rupp, Price, Simcocke, Kautmann, Klinkenberg/Clinkenburgh, Lorentz, Paxson, Harvey, etc.
George (Walker ?) Stowel married Emma Jane Hartman/Hardman in 1878 in Napa, CA, d/o Levi Wise Hartman and Alice Bradecks/Broadhurst, s/o Benjamin J. and Catherine Hostetler. I can't find the Stowels to save my life.
The Hartmans were from Bischofsheim, Palatinate, Germany. The Broadhurst family is described as "Low Dutch", from the Netherlands perhaps. The Klinkenbergs were from Utrecht, the Hostetlers from Switzerland or Alsace. The Townsends are Quaker, as are the Hartleys, Paxsons, Plumleys, and possibly the Simcockes. What a mixture, I even have some Wallons - the Praa/Prats and the Philippes.
Are any of these names to be associated with the Sephardim?